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选课系统作业
一、作业需求
程序名称: 选课系统
角色:学校、学员、课程、讲师
要求:
1. 创建北京、上海 2 所学校
2. 创建linux , python , go 3个课程 ， linux\py 在北京开， go 在上海开
3. 课程包含，周期，价格，通过学校创建课程
4. 通过学校创建班级， 班级关联课程、讲师
5. 创建学员时，选择学校，关联班级
6. 创建讲师角色时要关联学校，
7. 提供两个角色接口
8. 学员视图， 可以注册， 交学费， 选择班级，
9. 讲师视图， 讲师可管理自己的班级， 上课时选择班级， 查看班级学员列表 ， 修改所管理的学员的成绩
10. 管理视图，创建讲师， 创建班级，创建课程
11. 上面的操作产生的数据都通过pickle序列化保存到文件里
二、文件目录
三、源代码
#! /usr/bin/env python # -*- coding: utf-8 -*- # __author__ = "Sam" # Date: 2017/7/4 import sys,os BASE_DIR=os.path.dirname(os.path.dirname(os.path.abspath(__file__))) sys.path.append(BASE_DIR) from src import core if __name__ == ‘__main__‘: core.func()
#! /usr/bin/env python # -*- coding: utf-8 -*- # __author__ = "Sam" # Date: 2017/7/4 STUDENTDB_PATH=r‘F:\python文件\选课系统\db\student‘ TEACHERDB_PATH=r‘F:\python文件\选课系统\db\teacher‘ COURSE_PATH=r‘F:\python文件\选课系统\db\course‘ SCHOOL_PATH=r‘F:\python文件\选课系统\db\school‘ CLASS_PATH=r‘F:\python文件\选课系统\db\class‘
#! /usr/bin/env python # -*- coding: utf-8 -*- # __author__ = "Sam" # Date: 2017/7/4 from src import models from conf import settings import pickle import os s1 = models.School(‘北京校区‘, ‘中国北京‘) s2 = models.School(‘上海校区‘, ‘中国上海‘) python = s1.create_course(‘Python‘, 19800, ‘6mons‘) linux = s1.create_course(‘Linux‘, 17800, ‘4mons‘) go = s2.create_course(‘Go‘, 9000, ‘4mons‘) school_obj=None def func(): while True: print(‘欢迎进入老男孩选课系统‘.center(30,‘*‘), ‘\n1.北京校区\n‘ ‘2.上海校区\n‘ ‘3.退出程序‘) res=input(‘请选择学校： ‘).strip() global school_obj if res == ‘1‘: school_obj=s1 elif res == ‘2‘: school_obj=s2 elif res == ‘3‘: break else: print(‘输入错误‘) continue while True: print(‘请选择视图‘.center(30,‘*‘)) cmd=input(‘1.学生视图\n‘ ‘2.老师视图\n‘ ‘3.管理员视图\n‘ ‘4.返回上一级\n‘ ‘5.退出选课系统: ‘).strip() if cmd == ‘1‘: student_view() elif cmd == ‘2‘: teacher_view() elif cmd == ‘3‘: admin_viwe() elif cmd == ‘4‘: break elif cmd == ‘5‘: exit() else: print(‘输入错误，请重新输入！‘) continue return school_obj def student_view(): ‘‘‘学生视图‘‘‘ while True: tag = True print(‘欢迎进入学生视图，请选择功能‘.center(30,‘*‘)) cmd=input(‘1.注册信息\n‘ ‘2.登录\n‘ #循环选择功能 ‘3.返回上级\n‘ ‘4.退出程序： ‘).strip() if cmd == ‘1‘: while True: print(‘欢迎注册学生信息‘.center(30, ‘-‘)) name=input(‘name: ‘).strip() name_id=input(‘name_id: ‘).strip() #注册信息 age=input(‘age: ‘).strip() sex=input(‘sex: ‘).strip() if not name: print(‘姓名必填‘) continue break student_obj=models.Student(name,name_id,age,sex) student_obj.save() elif cmd == ‘2‘: while tag: print(‘请登录‘.center(30,‘-‘)) name = input(‘请输入用户名： ‘) name_id = input(‘请输入用户id： ‘) #登录，如果数据库中有这个人的文件，继续，否则打印用户不存在 res = os.listdir(settings.STUDENTDB_PATH) for item in res: file_path = r‘%s\%s‘ % (settings.STUDENTDB_PATH, item) with open(file_path, ‘rb‘) as f: student_obj = pickle.load(f) if name == student_obj.name and name_id == student_obj.user_id: while tag: cmd=input(‘登录成功\n‘ ‘1.交学费\n‘ ‘2.选择班级\n‘ ‘3.返回上级\n‘ ‘4.退出程序\n‘ ‘请选择功能： ‘).strip() if cmd == ‘1‘: #交学费 money = int(input(‘请输入缴纳金额： ‘)) student_obj.tuition+=money print(‘缴纳成功，学费余额为%s‘ %student_obj.tuition) student_obj.save() elif cmd == ‘2‘: #选择班级 res = os.listdir(settings.CLASS_PATH) for item in res: file_path = r‘%s\%s‘ % (settings.CLASS_PATH, item) with open(file_path, ‘rb‘) as f: class_obj = pickle.load(f) print(‘班级名称：<%s> 班级所学课程<%s>‘ % (class_obj.name, class_obj.course)) course_cmd = input(‘请选择班级：‘) res = os.listdir(settings.CLASS_PATH) for item in res: file_path = r‘%s\%s‘ % (settings.CLASS_PATH, item) with open(file_path, ‘rb‘) as f: class_obj = pickle.load(f) if course_cmd == class_obj.name: for i in class_obj.student: if student_obj.id == i.id: print(‘班级已有此人‘) #如果班级里已有此人，则结束村换 tag=False else: class_obj.student.append(student_obj) student_obj.student_class.append(class_obj) student_obj.save() class_obj.save() print(‘班级添加成功‘) student_obj.tell_info() elif cmd == ‘3‘: tag=False elif cmd == ‘4‘: exit() else: continue else: print(‘用户不存在‘) tag=False elif cmd == ‘3‘: return elif cmd == ‘4‘: exit() else:continue def teacher_view(): ‘‘‘讲师视图‘‘‘ tag = True #添加一个标志位 while tag: print(‘请登录‘.center(30,‘-‘)) name=input(‘请输入用户名： ‘).strip() name_id=input(‘请输入用户id： ‘).strip() res = os.listdir(settings.TEACHERDB_PATH) for item in res: file_path = r‘%s\%s‘ % (settings.TEACHERDB_PATH, item) with open(file_path, ‘rb‘) as f: teacher_obj = pickle.load(f) if name == teacher_obj.name and name_id == teacher_obj.user_id: while tag: print(‘欢迎进入讲师视图‘.center(30,‘*‘)) cmd=input(‘1.管理班级\n‘ ‘2.选择上课班级\n‘ ‘3.查看班级学员列表\n‘ ‘4.修改学员成绩\n‘ ‘5.返回上一级\n‘ ‘6.退出选课系统\n‘ ‘请选择功能： ‘).strip() if cmd == ‘1‘: for i in teacher_obj.teacher_class: i.tell_info() elif cmd == ‘2‘: res = os.listdir(settings.CLASS_PATH) for item in res: file_path = r‘%s\%s‘ % (settings.CLASS_PATH, item) with open(file_path, ‘rb‘) as f: class_obj = pickle.load(f) print(‘班级名称：<%s> 班级所学课程<%s>‘ % (class_obj.name, class_obj.course)) class_cmd = input(‘请选择班级：‘) res = os.listdir(settings.CLASS_PATH) for item in res: file_path = r‘%s\%s‘ % (settings.CLASS_PATH, item) with open(file_path, ‘rb‘) as f: class_obj = pickle.load(f) if class_obj.name == class_cmd: class_obj.teacher.append(teacher_obj) teacher_obj.teacher_class.append(class_obj) teacher_obj.save() class_obj.save() teacher_obj.tell_info() elif cmd == ‘3‘: for i in teacher_obj.teacher_class: for j in i.student: j.tell_info() elif cmd == ‘4‘: name=input(‘请输入想要修改的学生姓名：‘).strip() name_id=input(‘请输入学生id： ‘).strip() num=int(input(‘请输入要修改的成绩： ‘).strip()) res = os.listdir(settings.STUDENTDB_PATH) for item in res: file_path = r‘%s\%s‘ % (settings.STUDENTDB_PATH, item) with open(file_path, ‘rb‘) as f: student_obj = pickle.load(f) if name == student_obj.name and name_id == student_obj.user_id: student_obj.grade+=num print(‘%s 的成绩已修改为 %s‘ %(student_obj.name,num)) student_obj.save() elif cmd == ‘5‘: tag=False elif cmd == ‘6‘: exit() else: continue def admin_viwe(): ‘‘‘管理员视图‘‘‘ print(‘请用管理员的身份登录，用户名：sam，密码：666‘.center(30,‘*‘)) #管理员有固定的用户名密码 name=input(‘请输入用户名： ‘) password=input(‘请输入密码： ‘) if name == ‘sam‘ and password == ‘666‘: while True: print(‘欢迎进入管理员视图‘.center(30,‘-‘)) cmd=input(‘1.创建讲师\n‘ ‘2.创建班级\n‘ ‘3.创建课程\n‘ ‘4.返回\n‘ ‘5.退出选课系统\n‘ ‘请选择功能: ‘) if cmd == ‘1‘: name=input(‘请输入讲师姓名： ‘).strip() user_id=input(‘请输入讲师id： ‘).strip() age=input(‘请输入讲师年纪： ‘).strip() sex=input(‘请输入讲师性别： ‘).strip() salary=input(‘请输入讲师薪资： ‘).strip() if not name: print(‘名字不能为空‘) continue teacher = school_obj.create_teacher(name,user_id,age,sex,salary) teacher.save() school_obj.save() print(‘%s 老师的信息创建成功‘ %teacher.name) teacher.tell_info() elif cmd == ‘2‘: name = input(‘请输入班级名： ‘).strip() course = input(‘请输入班级课程： ‘).strip() if not name or not course: print(‘输入错误‘) continue class_obj=school_obj.create_class(name,course) class_obj.save() school_obj.save() print(‘%s 班级创建成功‘ %class_obj.name) class_obj.tell_info() elif cmd == ‘3‘: course = input(‘请输入课程名字： ‘).strip() price = input(‘请输入课程价钱： ‘).strip() period = input(‘请输入课程周期： ‘).strip() if not course or not price or not period: print(‘输入错误‘) continue course_obj = school_obj.create_course(course,price,period) course_obj.save() school_obj.save() print(‘%s 课程创建成功‘ %course_obj.course) course_obj.tell_course() elif cmd == ‘4‘: return elif cmd == ‘5‘: exit() else: continue else: print(‘用户名密码错误‘) if __name__ == ‘__main__‘: func()
#! /usr/bin/env python # -*- coding: utf-8 -*- # __author__ = "Sam" # Date: 2017/7/4 from conf import settings import pickle import hashlib import os class School: ‘‘‘学校类‘‘‘ def __init__(self,school_name,school_site): self.school_name=school_name self.school_site=school_site self.school_courses=[] #为学校所有的课程创建一个空列表 self.school_terchers=[] #创建一个空列表存放老师 self.school_class=[] #创建一个空列表存放班级 def create_class(self,name,course): ‘‘‘创建班级‘‘‘ class_obj=Class(name,course) self.school_class.append(class_obj) return class_obj def create_course(self,course,price,period): ‘‘‘创建课程‘‘‘ course_obj=Course(course,price,period) self.school_courses.append(course_obj) return course_obj def create_teacher(self,name,user_id,age,sex,salary): ‘‘‘创建老师‘‘‘ teacher_obj=Teacher(name,user_id,age,sex,salary) self.school_terchers.append(teacher_obj) return teacher_obj def create_student(self,name,user_id,age,sex,classroom): ‘‘‘创建学生‘‘‘ student_obj=Student(name,user_id,age,sex) classroom.student.append(student_obj) return student_obj def save(self): ‘‘‘保存信息‘‘‘ with open(r‘%s\%s‘ %(settings.SCHOOL_PATH,self.school_name),‘wb‘) as f: pickle.dump(self,f) class Class: ‘‘‘班级类‘‘‘ def __init__(self,name,course): self.name=name self.teacher=[] self.course=course self.student=[] def tell_info(self): ‘‘‘查看班级信息‘‘‘ print(‘‘‘ -------%s info--------- name:%s teacher:%s course:%s student:%s ‘‘‘ %(self.name,self.name,self.teacher,self.course,self.student)) def save(self): ‘‘‘保存班级信息‘‘‘ with open(r‘%s\%s‘ %(settings.CLASS_PATH,self.name),‘wb‘) as f: pickle.dump(self,f) class Course: ‘‘‘课程类‘‘‘ def __init__(self,course,price,period): self.course=course self.price=price self.period=period def tell_course(self): ‘‘‘查看课程信息‘‘‘ print(‘‘‘ --------%s info--------- COURSE:%s PRICE:%s PERIOD:%s ‘‘‘ %(self.course,self.course,self.price,self.period)) def save(self): ‘‘‘保存课程信息‘‘‘ with open(r‘%s\%s‘ %(settings.COURSE_PATH,self.course),‘wb‘) as f: pickle.dump(self,f) class People: def __init__(self,name,user_id,age,sex): self.user_id=user_id self.name=name self.age=age self.sex=sex self.courses=[] self.id=self.create_id() def tell_crouse(self): ‘‘‘查看课程‘‘‘ for obj in self.courses: obj.tell_crouse() def create_id(self): ‘‘‘加密‘‘‘ m = hashlib.md5() m.update(self.name.encode(‘utf-8‘)) m.update(str(self.user_id).encode(‘utf-8‘)) return m.hexdigest() class Teacher(People): def __init__(self,name,user_id,age,sex,salary): People.__init__(self,name,user_id,age,sex) self.salary=salary self.teacher_class=[] def tell_info(self): ‘‘‘查看老师信息‘‘‘ print(‘‘‘ --------%s info--------- NAME:%s ID:%s AGE:%s SEX:%s SAL:%s CLASS:%s ‘‘‘ %(self.name,self.name,self.user_id,self.age,self.sex,self.salary,self.teacher_class)) def save(self): ‘‘‘保存老师信息‘‘‘ with open(r‘%s\%s‘ % (settings.TEACHERDB_PATH, self.id), ‘wb‘) as f: pickle.dump(self, f) class Student(People): def __init__(self,name,user_id,age,sex): People.__init__(self,name,user_id,age,sex) self.student_class=[] self.tuition=0 self.grade=0 def __str__(self): return self.name def tell_info(self): ‘‘‘查看学生信息‘‘‘ print(‘‘‘ ---------%s info---------- NAME:%s ID:%s AGE:%s SEX:%s CLASS:%s TUITION:%s GRADE:%s ‘‘‘ %(self.name,self.name,self.id,self.age,self.sex,self.student_class, self.tuition,self.grade)) def save(self): ‘‘‘保存学生信息‘‘‘ with open(r‘%s\%s‘ %(settings.STUDENTDB_PATH,self.id),‘wb‘) as f: pickle.dump(self,f)
选课系统作业
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